/**
  ******************************************************************************
  * File Name          : I2C.c
  * Description        : This file provides code for the configuration
  *                      of the I2C instances.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Includes ------------------------------------------------------------------*/
#include "i2c.h"

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

I2C_HandleTypeDef hi2c3;

/* I2C3 init function */
void MX_I2C3_Init(void)
{

    hi2c3.Instance = I2C3;
    hi2c3.Init.Timing = 0x10909CEC;
    hi2c3.Init.OwnAddress1 = 0;
    hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
    hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
    hi2c3.Init.OwnAddress2 = 0;
    hi2c3.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
    hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
    hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;

    if (HAL_I2C_Init(&hi2c3) != HAL_OK)
    {
        Error_Handler();
    }

    /** Configure Analogue filter
    */
    if (HAL_I2CEx_ConfigAnalogFilter(&hi2c3, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
    {
        Error_Handler();
    }

    /** Configure Digital filter
    */
    if (HAL_I2CEx_ConfigDigitalFilter(&hi2c3, 0) != HAL_OK)
    {
        Error_Handler();
    }

}

void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{

    GPIO_InitTypeDef GPIO_InitStruct = {0};

    if(i2cHandle->Instance == I2C3)
    {
        /* USER CODE BEGIN I2C3_MspInit 0 */

        /* USER CODE END I2C3_MspInit 0 */

        __HAL_RCC_GPIOA_CLK_ENABLE();
        __HAL_RCC_GPIOB_CLK_ENABLE();
        /**I2C3 GPIO Configuration
        PA7     ------> I2C3_SCL
        PB4 (NJTRST)     ------> I2C3_SDA
        */
        GPIO_InitStruct.Pin = GPIO_PIN_7;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
        GPIO_InitStruct.Pull = GPIO_PULLUP;
        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
        GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);

        GPIO_InitStruct.Pin = GPIO_PIN_4;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
        GPIO_InitStruct.Pull = GPIO_PULLUP;
        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
        GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
        HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);

        /* I2C3 clock enable */
        __HAL_RCC_I2C3_CLK_ENABLE();
        /* USER CODE BEGIN I2C3_MspInit 1 */

        /* USER CODE END I2C3_MspInit 1 */
    }
}

void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
{

    if(i2cHandle->Instance == I2C3)
    {
        /* USER CODE BEGIN I2C3_MspDeInit 0 */

        /* USER CODE END I2C3_MspDeInit 0 */
        /* Peripheral clock disable */
        __HAL_RCC_I2C3_CLK_DISABLE();

        /**I2C3 GPIO Configuration
        PA7     ------> I2C3_SCL
        PB4 (NJTRST)     ------> I2C3_SDA
        */
        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_7);

        HAL_GPIO_DeInit(GPIOB, GPIO_PIN_4);

        /* USER CODE BEGIN I2C3_MspDeInit 1 */

        /* USER CODE END I2C3_MspDeInit 1 */
    }
}

/* USER CODE BEGIN 1 */

/* USER CODE END 1 */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
